Machine for applying adhesives to can-heads.



P. KRUSB.

MACHINE FOR APPLYING ADHESIVES TO CAN HEADS.

APPLICATION FILED JULY 7,1010.

986,470, I Patented Mar. 14, 1911.

2 SHEETS-SHEET 1.

, for/143's,

P. KRUSE. MACHINE FOR APPLYING ADHESIVES T0 GAN HEADS. APPLIGATIUN TILED JULY 7, 1910.

986,470. Patented Mar.14,1911.

2 SHEETS-SHEET 2.

INVE NTOR J C Mar/211111,

' tain new and useful Improvements in Ma-' chines for Applying Adhesives to Can- PETER xaosn, or NEW YORK, N. Y.

mncnmn ron APPLYING .umnsrvns To can-means.

Specification of Letters Patent.

Patented Mar. 14, 1911.

application filed July 7, 1910. Serial No. 570,758.

To all whom it may concern:

Be it known that I, PETER KRUSE, a citizen of the United States, residing. in the borough of Brooklyn, county of Kings, city and State of New York, have invented cer- Heads, of which the following is a specificabottoms of sheet metal cans, a coatin tion.

This invention relates to apparatus for applying to can heads, that is to-the tops 0;

0 suitable adhesive material such as a ru ber cement. Such coating is commonly applied to a can head which is to be united to the can body by seaming and without solder, the coating being sufiiclently elastic to form an impervious packing between the folds of the metal forming the seam.

The particular invention forming the subject matter of the present aplication prochine therewith.

vides means for preventing, e smearing of adheslve material, such as rubber cement,

over parts of the machine where it is not desired. I have shown the same 1n connection with a machine such as is embodied in my application Serial No. 519,348, filed September 24, 1909. In the use of the machine described in said application, it has been found that the rubber cement being extremely tenacious, is apt to spread from the cementing roll to the can head, and that it will not separate cleanly from the roll after the same leaves contact with the can head, but stretches irom the roll to the can-head, formin a long film. Also that undesired quantities of said rubber cement are carried up on the sides of the roll, and that the result of these two conditions is to cause the rubber cement to. be smeared around the top of the machine, greatly impeding its operation. Further, that when the can head is removed from the machine, the cement stretches in a long string from the roll to the can head and further smears-the ma- My present invention has for its object to overcome the said difliculties, and to cause the cement to be removed from'the roll in the roll after the roll has deposited it's ap plication upon the can head. Further, to provide means for severing the strip of ad- Ihesive cement when the can .head is discharged from the machine.

I have shownmy invention as applied to a machine of the type illustrated in my said former application, although it is not necessarily limited in its application to such particular type of mac me, but will be found equally applicable to other types of machines for similar purposes.

In the particular embodiment illustrated in the accompanying drawings,Figure 1 is a sectlonal elevation of a type of machine to which my improvements may be applied; Fig. 1s a detail view illustrating in side elevatlon one of the cement rolls; Fig. 3 is a transversesection of the parts illustrated n Fig. 2; F1 4 is a lan view of the parts illustrated in i 2, this can head and means for holdin an revolvin the same being removed; ig. 5 is adetail view of the roll and strilppinf device taken from the under side of I will describe for clearness of understanding the general construction of machlne in connection with which I have illustrated my improved devices as being employed. I e A designates a supporting frame or standard adapted to provide bearings for the moving parts. on top of this standard is a table B .through the middle of which pro ects. vertically a fixed shaft or stud G WhICll is suitabl secured to hold it nonrotative. On t e table B is mounted a trough D serving as .a receptacle for the adhesive material .or cement which is preferably annular forming a complete circle. lVithin and above the trough are located a series of chucks E E for grasping, revolving and carrying the can heads. These chucks are. composed of upper and lower pads or disks a and b, which receive the can heads bet-ween them, suitable means being provided'for closing them together to clasp the head and for separating them to.

release it. Suitable means also is provided for revolving the chucks and for swinging them around in a circular path or orbit. The means shown consists of a turn-table or carrier F comprising a central hub or sleeve G, an upper spider or disk H carry-- ing the upper heads with its. central hdb fixed onthe sleeve G, and a. lower spider or disk J having its central hub also fixed on the sleeve G. The turn-table thus formedment thus in mg said application which is. well ada ted to t is revolved continuously through the 1 medium of miter gears K K from a driving shaft L carrying a driving pulley M or other means for transmitting .power. For revolvin the chucks a stationary gear N is provided fixedly mounted on the stationary stud or post C, as shown in Fig. 1, and the upper spindles c c of the chucks have keyed upon them inions d d which mesh with the teeth of this stationary gear, the arrangerovidedconstituting sun and planet whee s, whereby as the turn-table revolves and causes the chucks to travel around in a circular path, their pinions are revolved by en agement with the teeth of the fixed sun w eel N.

For opening and closing the chucks, a suitable means is provided which will be described. The upper rotatively driven pad a of each chuck is carried ,at an invariable height by the mounting of its spindle in one of t e arms of the u per spider H. The lower disk or ad b o mounted on a spin e e to revolve idl and 1S movable up and down. Althoug is immaterial, yet the construction s own e pur ose, may be employed. ach

pad or dis 6 is mounted on a spindle e wh ch turns freely in a sleeve or bushing f whlch is held movably within a socket in the hub g of the carrier spider J. The sleeve f 1s movable up and down, being pressed downwardly by a spring h located in a counter bore surrounding the sleeve. The lower portion of thesleeve forms a head which rejects beneath the hub and is engaged y a cam P. The spindle e project own only part way through the sleeve and rests upon the top of another sleeve i therein which s pressed upwardly by, a spring 7'. The cam P is formed in the arc of a circle,

the open space between its ends correspond ing to that ortion of the travel of the chucks wherein they are open and inactive. The cam Pis fastened upon the table B just within the trough D, and underlies the path traversed by the axes of theqchucks in their circular travel. At its ends it has inclines only one of which P is shown. The incline at the Iengaging e'nd receives the lower end or head of each sleeve f and lifts it a ainst the pressureof its s rin h, thereby iiting the parts carried y this sleeve, includin the pad I). The lifting movement is slight y greater than that which would bring this pad into .grip with the pad 41, in order to thereby compress the spring 1', which latter spring is stifi enough to grasp the can head with the requisite force, and

yet is adapted to yield so as to compensate for varying thicknesses of heads and for any. accidental irregularities. When a chuckreaches the opposite end P" of the cam P,

each chuck is the speclfic construction for accomplishin .this.

is placed within the sleeve f rides down ofi the end "thereof, which is preferably also inclined, thereby lowering the pad I) and opening the chuck. To insure that the expansion of the spring 7' shall not hold up this pad, or in other words to hold down this pad against the upward stress of the spring y, some stop such as .a transverse pin or key 70, is provided for limiting the upward movement of the rotative spindle e.

The lower member or spider J of the turn-table is formed with or carries a disk Q, of diameter sufliciently large to extend partly over and preferably to entirely cover the adhesive trough D. The plate Q s preferably formed separately from the spider or disk J. It forms the carrier for the means for applying adhesive to the revolving which is provided for each adhesive-apply for ing means. Aspring m is provide pressing up the arm of the lever car the roll R and pressing down the tail 0 the lever into engagement with the cam T. The roll R is located outside of the chuck and in position to be directly beneath the portion of the can head to which the adhesive is to be applied, and when ressed up by the spring moves up throng into contact with the can head, as shown in Fig. 2, and on the right inFig. 1. The cam T is conveniently arranged inside the adhesive trough D, in which case the S foreach. of the adhesive ap lying means this trough. The cam T is arranged to force the adhesive-applying roll down out of action and consequent y corresponds in position with the open portion or space between the ends of the cam- 1?.

The foregoing is a description of those parts of my machine here illustrated which are embodied in my prior application above referred to, and are hereshown only by way of illustrating one application of my pres ent invention. In connection with the cement roll R, I provide a stripper A, which I have illustrated as being applied to the under side of the cover Q, to which it may be attached by screws, and which is shaped at its 9 erative end so as to en age a amst both si es of the cement roll an also against that portion of the eriphery ofthe wheel which is 'represente as being gute knurled peri hery as this is the part whio "car; cement and applies the same a slot or opening:

entire lever to the can head. It does, however,'remove adhesion to the can head and also to the roll,-

stretch in a constantl widening film between the can head an the roll, and if this film is not broken it becomes deposited upon the carrier and leads to the same in time bc ing completely smeared over with the rubher cement. 0 break this film or strip of i cement, I provide a separator B which consists of a bracket attached preferably to the end of the lever S in which the roll R is supported. This separator B is shaped somewhat to conform to the outer edge of the roll R, and preferably extends around the same, and it is located as near as .convenient to the top of the roll upon the descending side, to prevent the formation of a film of cement extending between the edge of the roll and the can head as the can head is revolving or to break or separate such film from the roll. I prefer to locate this separator upon the lever S, because thereby it is removed from the ath of the means which I am about to descrlbe for ting the strip of rubber cement.

The can head is automatically removed from the machine by means not here illustrated, but illustrated in connection with cut- 'my former application. This is permitted by the presence of the cam T in the bottom of the annular trough D which raises the tail of the roll carrying lever and lowers the said roll out of contact with the can head."

At'the point where the roll R is lowered, I interpose a stationary cutter C attached to the side of the stationary trough D and cause the same to project over the disk Q, and to pass between the lowered roll R and the can head, thereby completely severiir the strip or film of cement which woul otherwise stretch from the roll to the can head and smear all over the machine as the can head is subsequently ejected.

The particular shape and location of stripper, separator and cutter which I have illustrated are well adapted to the-particular machine in connection with which they are shown asbeing used, but such shape or particular location I do not regard as essential, and this is subject to change for the requirements of a particular machine. I do regard it, however, as very important and as practically essential to the successful operation of a machine for applying rubber cement or other elastic or adhesive material,

volving carrier, rolls travelin of application of said adhesive materia and adapted to separate a film of adhesive material from said roll.

2. The combination of a trough adapted to contain adhesive material, a roll adapted to revolve in said material and to apply the same to a surface adjacent said roll to be coated, and a cutter located at the discharge point of said coated surface and adapted to cut a-strip of adhesive material extending from the coated surface to the roll.

3. The combination of a stationary trough adapted to'contain adhesive'material, a rewith said carrier and adapted to be revo ved in said material and to apply the same to a surface to be coated located above said roll, and av separator located, with relation to the direction of rotation of said roll, on the descending side and beyond the point of application of said adhesive material and adapted to separate a film of adhesive material from the roll.

4. The combination of a stationary trough adapted to contain adhesive material, a re volving carrier, rolls traveling with said carrier and adapted to be revolved in said material and to apply the same to a surface to be coated located above saidroll, a stripper located on the ascending side of the roll and before the point of application and adapted toremove adhering material from the sides of said roll, and a separator located with relation to the direction of rotation of said roll, on the descending side and beyond the point of application of said adhesive material and adapted to separate a film of adhesive material from the roll.

5. The combination of a stationary trough adapted to contain adhesive material, a revolving carrier, rolls traveling with said carrier and adapted to be revolved in said material and to apply the same to a surface to be coated located above said roll, means for supporting and lowering said rolls, and

a cutter located 'at the discharge ,point of.

*to be coated located above said roll, means for supporting and lowering said rolls; a

stri per located u faon the carrier adjacent to t e rising side. 0 said roll and before the point of application and adapted to remove adhesive material from the sides thereof, and a separator located upon the roll support adjacent to the descending side of ,the

roll and beyond the. point of a plicat-ion and adapted to se arate a film o adhesive material from sai roll.

7. The combination of a stationary trough adapted to contain adhesive material, a revolving carrier, means carried thereby for grasping and turning a can head,v rolls traveling with said earner and adapted to be revolved in said material, means for support 4 roll.

and lowering said rolls,. "a stri a up ted to remove adhesive material rom said rolls, a separator mounted -u on said roll sufport and lowered therewlth, and adapte to separate a strip of adhesive material from said roll, and a stationary cutter adapted to enter between the can head and the roll when the roll is lowered and cut a strip of adhesive'material adhering to said In witness whereof, I have hereunto signed my name in thepresence of two subscribing witnesses.

' PETER KRUSE. \Vitnesses:

FREDK. C. FLADD, CHARLES Enwm POLLARD. 

